:root{--bg-color: #050505;--nav-bg: rgba(5, 5, 5, .8);--card-bg: rgba(255, 255, 255, .03);--card-border: rgba(255, 255, 255, .1);--primary-gradient: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);--secondary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--text-primary: #ffffff;--text-secondary: #a0a0a0;--accent-color: #4facfe;--mesh-opacity: .05;--footer-border: rgba(255, 255, 255, .1);--table-header-bg: rgba(255, 255, 255, .03);--table-row-hover: rgba(255, 255, 255, .04);--spec-card-bg: #0d0d12;--stat-card-bg: rgba(255, 255, 255, .03);--h1-gradient: linear-gradient(to bottom, #ffffff 0%, #aaaaaa 100%);--text-tertiary: rgba(255, 255, 255, .4)}[data-theme=light]{--bg-color: #f1f5f9;--nav-bg: rgba(255, 255, 255, .9);--card-bg: #ffffff;--card-border: rgba(148, 163, 184, .25);--text-primary: #0f172a;--text-secondary: #475569;--accent-color: #2563eb;--mesh-opacity: .08;--footer-border: rgba(0, 0, 0, .06);--table-header-bg: #e2e8f0;--table-row-hover: #f8fafc;--spec-card-bg: #ffffff;--stat-card-bg: #ffffff;--h1-gradient: linear-gradient(to bottom, #0f172a 0%, #334155 100%);--text-tertiary: rgba(15, 23, 42, .5)}*{box-sizing:border-box;margin:0;padding:0}html{font-family:Inter,sans-serif;background:var(--bg-color);color:var(--text-primary);scroll-behavior:smooth}h1,h2,h3,.logo{font-family:Outfit,sans-serif}.background-mesh{position:fixed;top:0;left:0;width:100%;height:100%;z-index:-1;background:radial-gradient(circle at 20% 20%,rgba(79,172,254,var(--mesh-opacity)) 0%,transparent 40%),radial-gradient(circle at 80% 80%,rgba(102,126,234,var(--mesh-opacity)) 0%,transparent 40%)}nav{background:var(--nav-bg);backdrop-filter:blur(10px);border-bottom:1px solid var(--card-border);position:sticky;top:0;z-index:2000}a{text-decoration:none;color:inherit}.nav-container{max-width:1200px;margin:0 auto;padding:1rem 1.5rem;display:flex;justify-content:space-between;align-items:center}.logo{font-size:1.5rem;font-weight:700;color:var(--text-primary);display:flex;align-items:center;gap:.75rem}.nav-logo{height:32px;width:auto;border-radius:6px}.gradient-text{background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.lang-dropdown{position:relative;display:inline-block}.lang-btn{background:transparent;color:var(--text-secondary);font-size:.9rem;padding:.5rem 1rem;border:1px solid var(--card-border);border-radius:20px;cursor:pointer;display:flex;align-items:center;gap:.5rem;transition:all .3s ease}.lang-btn:hover{color:var(--text-primary);border-color:var(--accent-color);background:var(--card-bg)}.lang-menu{visibility:hidden;opacity:0;position:absolute;top:100%;right:0;padding:.5rem;margin-top:.5rem;background:var(--card-bg);border:1px solid var(--card-border);border-radius:12px;min-width:140px;box-shadow:0 10px 30px #0000004d;z-index:3000;backdrop-filter:blur(20px);transition:all .2s cubic-bezier(.4,0,.2,1);transform:translateY(10px);pointer-events:none;transition-delay:.1s}.lang-menu:before{content:"";position:absolute;top:-1.5rem;left:-20px;right:-20px;height:1.5rem}.lang-dropdown:hover .lang-menu{visibility:visible;opacity:1;transform:translateY(0);pointer-events:auto;transition-delay:0s}.lang-item{display:block;padding:.5rem 1rem;color:var(--text-secondary);text-decoration:none;font-size:.9rem;border-radius:8px;transition:all .2s}.lang-item:hover,.lang-item.active{background:var(--nav-bg);color:var(--accent-color)}.theme-toggle{background:transparent;border:1px solid var(--card-border);color:var(--text-secondary);padding:.5rem;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease}.theme-toggle:hover{color:var(--text-primary);border-color:var(--accent-color);background:var(--card-bg)}[data-theme=dark] .sun-icon{display:block}[data-theme=dark] .moon-icon,[data-theme=light] .sun-icon{display:none}[data-theme=light] .moon-icon{display:block}.mobile-menu-btn{display:none;background:transparent;border:1px solid var(--card-border);color:var(--text-secondary);padding:.5rem;border-radius:8px;cursor:pointer}.nav-actions{display:flex;align-items:center;gap:.8rem}.nav-links{display:flex;align-items:center;gap:2rem;margin-left:auto;margin-right:2rem}@media(max-width:768px){.nav-container{padding:.75rem 1rem}.nav-links{position:fixed;inset:64px 0 0;background:var(--bg-color);flex-direction:column;padding:2rem;gap:2rem;margin:0;transform:translate(100%);transition:transform .3s ease;z-index:99}.nav-links.mobile-active{transform:translate(0)}.mobile-menu-btn{display:block}.nav-item{font-size:1.2rem;width:100%;text-align:center;padding:1rem;border-radius:12px;background:var(--card-bg);border:1px solid var(--card-border)}.logo .brand-text{font-size:1.2rem}main{padding:1rem}}.nav-item{color:var(--text-secondary);font-size:.95rem;font-weight:500;transition:color .3s ease}.nav-item:hover{color:var(--text-primary)}main{max-width:1200px;margin:0 auto;padding:1.5rem;min-height:80vh}.card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:16px;padding:1.5rem;backdrop-filter:blur(5px);transition:transform .3s ease,border-color .3s ease}.card:hover{transform:translateY(-5px);border-color:var(--accent-color);box-shadow:0 10px 30px #0000001a}footer{border-top:1px solid var(--footer-border);padding:2rem;text-align:center;color:var(--text-secondary);font-size:.9rem}